James eigby



- ZSheets-Sheet 1. J.- RIGBY.

GAS EXPANDER AND BURNER.

No. 365,633. Patented June 28, 1887 INVENTU WITN E5555:

I I 2 Sheets-Sheet 2. J. RIGBY.

GAS BXPANDER AND BURNER. .No. 365,633.- Patented June 28, 1887.

iNVENTEIFQ WITNESSES! I v a ham-LR 03mph", Wuhinghm. 0,0,

UNITED STATES PATENT OFFICE.

JAMEs RIGBY, OF MONTREAL, QUEBEC, CANADA.

GAS EXPANDER AND BURNER.

SPECIFICATION forming part of Letters Patent No. 365,633, dated June 28,1887.

Application filed April 10, 1877.

To all whom it may concern.-

Be it known that 1, JAMES RIGBY, a citizen of the United States, nowresiding at Montreal, Quebec, Canada, have invented a new and usefulImprovement in Gas Expanders and Burners; and I do hereby declare thatthe following is a full and exact description of the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon.

This invention relates to that class of apparatus or fixtures which areadapted for use in connection with a fixed gas taken from a main and itconsists in the construction, combination, and arrangement of parts,hereinafter described and'claimed. I

In the drawings, Figure 1 represents a side elevation of one form of myinvention; Fig. 2, a plan view of the same; Fig. 3, a plan view of thering or disk in which the heating-chambers are formed, and Fig. 4 avertical longitudinal section of the same. Fig. 5 represents a sideelevation of another form; Fig. 6, a

plan view of the same; Fig. 7, a vertical longitudinal section throughthe chamber. Figs. 8 and 9 represent a side elevation and plan,respectively, of a modification in'which the heating-chamber is formedin the pipe itself, and the reflector a, with its supports and theshade-holder, constructed as shown in Fig. 5, is to be. used inconnection with the form of heating-chamber shown in Figs. 8 and 9.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe fully its construction and manner of operation.

A represents an annular casting or block, of any suitable size andproper material, which is provided with the inner chamber, a, as shown.I

a" represents the inlet-pipe, of comparatively large diameter, whichissecurely attached to the main fixtures in any proper manner.

a? represents the outlet-pipe, of comparatively small diameter, by meansof which the gas is conveyed from the chamber a to the burner a asshown.

represent standards of proper construction rising from the casting, anda a disk of suitable material-porcelain or mica being preferred-adaptedto rest upon the standards,

as shown, the purpose of this construction being to reflect the rays oflight, prevent the floating particles of carbon fromrisingto theceiling, and reflect the rays of heat rising from the burner against theannular expander. The casting A, it will be observed, is caused tooverhang the burner in proper-position to be advantageouslyacted upon bythe heat.

The operation will be readily understood. When the gas is lighted, thatportion of the pipe or the casting attached thereto which overhangs theburner will be acted upon by the direct rays of heat from the latter,and also by the rays reflected from the disk of. In consequence of thisthe pipe or ring becomes intensely hot and communicates its heatnecessarily to the gas passing through the same to the burner. By thisheating and reflex action the gas is both raised in temperature andexpanded in. volume, and hence it follows that when it is finallydelivered for consumption it'is brought more perfectly into contact withthe oxygen, and, also, it is more perfect-1y Brepresents an open ring,ofelastic metal of proper size, which is adapted to inclose the neck ofthe shade for the purpose of supporting the same, it being readilyattached thereto by springing the same into place, as shown.

I) I) represent hooks or links of any proper construction, by means ofwhich the ring 13 is united above to the proper supports.

Z) represents the globe or shade, of any proper form, size, and suitablematerial.

If desired, the shade may be adapted to be supported directly by thehooks without a ring, as shown in Fig. 1.

If desired, also, the shade may be provided with reflecting-surfaces b11 Fig. 1, for the purpose of throwing the light down upon inlet andoutlet pipe, and a heat and light refiector and carbon-arrester restingupon said lugs and secured centrally above the expander, substantiallyas shown and described.

2. A gasexpander and shade-holder consisting of an annular castinghaving lugs a and downwardly-projeating curved hooks pro vided withmeans for suspending a bell-shaped shade, an inlet and outlet pipe, anda heat and light reflector and earbon-arrester resting upon said lugsand secured centrally above the expander, substantially as shown anddescribed.

This specification signed and witnessed this 10th day of April, 1877. I

J AMES RIGBY.

Witnesses:

MAMIE E. STALLINGS, H. \V. BEADLE.

